Homework Answers
Add Answer to:
Calculate the final temperature for each of the following mixtures. Assume no heat loss to the...
Show how to solve: The determination of the heat of neutralization for HCl was determined, using...
Show how to solve: The determination of the heat of neutralization for HCl was determined, using a calorimeter having a calorimeter constant of 85.0 J/°C. To this calorimeter, 50.0 mL of 2.100 M HCl were added to 50.0 mL of 2.210 M NaOH. The temperature rose from 25.0 °C to 35.0 °C. The specific heat of the mixture is 5.02 J/g°C. The density of the mixture is 1.02 g.cm-3. What is the heat of neutralization for HCl in kJ/mol? (Answer...
2. Consider the reaction of 50.0 mL of 1.15 M HC2H302 with 50.0 mL of 1.30...
2. Consider the reaction of 50.0 mL of 1.15 M HC2H302 with 50.0 mL of 1.30 M NH3. a. Give the net ionic reaction between these two reagents. H+(99) + NH3(aq) →NH4+(29) b. Calculate the moles of each reactant and indicate which reactant is the limiting reagent. Moles of HC2H2O2: 0.058 moles Moles of NH3: 0.065 moles c. Once the two reactant solutions are brought to the same initial temperature, they are mixed in a calorimeter, also at the same...
3. 50.0 mL of 1.00M NaOH was added to 50.0mL of 1.00M HCl in a coffee-cup...
3. 50.0 mL of 1.00M NaOH was added to 50.0mL of 1.00M HCl in a coffee-cup calorimeter. The temperature of the water increased from 25.0°C to 31.5°C. (A)How much heat in Joules was produced by the reaction? (B) What is the AH for the neutralization of 1.00 mol of HCI?
44. For each determination calculate the number of moles of HCl and of Naon that were...
44. For each determination calculate the number of moles of HCl and of Naon that were present when you mixed 50.0 mL of 2.00M HCl with 51.0 mL of 2.00M NaOH, using Equation 5. determination 1 mol HCI determination 2 _mol HCI mol NaOH mol NaOH 5. For each determination, calculate the number of moles of NaOH that reacted when you mixed 51.0 mL of 2.00M NaOH with 50.0 mL of 2.00M HCl. determination 1 determination 2 6. For each...
When 50.08 g of 1.00 M NaOH at 23 C is added to 50.22 g of...
When 50.08 g of 1.00 M NaOH at 23 C is added to 50.22 g of 1.00 M HCl at 23 C, the resulting temperature of the mixture is 29.7 C. (Assume that the calorimeter constant is equal to zero. Assume that the solutions have the same specific heat capacity (4.184 J/g·K) and density (1.00 g/mL) as water. Take care with signs.) a) What is ΔT for this process? b) Calculate qsolution (in J) for this process. c) Calculate qreaction...
A calorimeter contains 25.0 mL of 0.300M X at 22.00C. To this, 75.0 mL of 0.100M Y (at 22.00C) is added. The final temperature was found to be 20.00C. The calorimeter constant is 25.0 J/K. The reacti...
A
calorimeter contains 25.0 mL of 0.300M X at 22.00C. To this, 75.0
mL of 0.100M Y (at 22.00C) is added.
The final temperature was found to be 20.00C. The calorimeter
constant is 25.0 J/K.
The reaction that occurs is: 2 X(aq) + Y(aq) = Z(s)
1) For the actual reaction, delta H = ? J [three significant
figures]
2) The thermochemical equation, which involves 2 moles of X
and 1 mole of Y per mole of reaction, is: 2...
please help! its due tomorrow!!! For any problem that requires a calculation, work must be shown...
please help! its due tomorrow!!!
For any problem that requires a calculation, work must be shown to POEL 1. A student collected the following data set for this lab. Calculate the following quantities Temperature of 50.0 mL of warmer water: 43.0°C Temperature of 50.0 mL of cooler water: 22.9°C Temperature after mixing: 32.7°C a. Heat lost by the warmer water b. Heat gained by the cooler water c. Heat lost to the calorimeter d. Heat capacity of the calorimeter 3....
When 25.0 mL of 0.700 mol/L NaOH was mixed in a calorimeter with 25.0 mL of...
When 25.0 mL of 0.700 mol/L NaOH was mixed in a calorimeter with 25.0 mL of 0.700 mol/L HCl, both initially at 20.0 °C, the temperature increased to 22.1 °C. The heat capacity of the calorimeter is 279 J/°C. Since the solutions are mostly water, the solutions are assumed to have a density of 1.0 g/mL and a specific heat of 4.18 J/g°C. What is the mass of the solution? Select one: a. No enough information b. 50.0 g c. 50.0 kg d. 25.0...
Lab 9 Heat of Reaction OBJECTIVE: To experimentally determine the heat of reaction for two exothermic...
Lab 9 Heat of Reaction
OBJECTIVE:
To experimentally determine the heat of reaction for two
exothermic reactions.
DISCUSSION:
The heat given off or gained in a reaction is called the heat
of reaction (∆?????????).
A reaction that releases heat is known as an exothermic
reaction; an endothermic reaction
is one that absorbs heat.
The heat of the reaction corresponds to one mole of the
reactant and is expressed in
kilocalories per mole of reactant or in kilojoules per mole of...
4. How many kJ of heat are released when 85.0 g of NaOH reacts with excess...
4. How many kJ of heat are released when 85.0 g of NaOH reacts with excess H2SO4? H2SO4(aq) + 2NaOH(aq) → Na2SO4(aq) + 2 H2O(l) + 114 kJ 5. 2.50 g of octane, CHis was bumed in a bomb calorimeter causing the temperature to increase from 21.0°C to 35.5°C. The total heat capacity of the calorimeter was 8.33 kJ/°C. Calculate the heat of combustion for the reaction shown below. 2 CH 18(1) + 2502(9) ► 16 CO2(g) + 18 H2O(g)...
2. Consider the reaction of 50.0 mL of 1.15 M HC2H302 with 50.0 mL of 1.30 M NH3. a. Give the net ionic reaction between these two reagents. H+(99) + NH3(aq) →NH4+(29) b. Calculate the moles of each reactant and indicate which reactant is the limiting reagent. Moles of HC2H2O2: 0.058 moles Moles of NH3: 0.065 moles c. Once the two reactant solutions are brought to the same initial temperature, they are mixed in a calorimeter, also at the same...
3. 50.0 mL of 1.00M NaOH was added to 50.0mL of 1.00M HCl in a coffee-cup calorimeter. The temperature of the water increased from 25.0°C to 31.5°C. (A)How much heat in Joules was produced by the reaction? (B) What is the AH for the neutralization of 1.00 mol of HCI?
44. For each determination calculate the number of moles of HCl and of Naon that were present when you mixed 50.0 mL of 2.00M HCl with 51.0 mL of 2.00M NaOH, using Equation 5. determination 1 mol HCI determination 2 _mol HCI mol NaOH mol NaOH 5. For each determination, calculate the number of moles of NaOH that reacted when you mixed 51.0 mL of 2.00M NaOH with 50.0 mL of 2.00M HCl. determination 1 determination 2 6. For each...
A
calorimeter contains 25.0 mL of 0.300M X at 22.00C. To this, 75.0
mL of 0.100M Y (at 22.00C) is added.
The final temperature was found to be 20.00C. The calorimeter
constant is 25.0 J/K.
The reaction that occurs is: 2 X(aq) + Y(aq) = Z(s)
1) For the actual reaction, delta H = ? J [three significant
figures]
2) The thermochemical equation, which involves 2 moles of X
and 1 mole of Y per mole of reaction, is: 2...
please help! its due tomorrow!!!
For any problem that requires a calculation, work must be shown to POEL 1. A student collected the following data set for this lab. Calculate the following quantities Temperature of 50.0 mL of warmer water: 43.0°C Temperature of 50.0 mL of cooler water: 22.9°C Temperature after mixing: 32.7°C a. Heat lost by the warmer water b. Heat gained by the cooler water c. Heat lost to the calorimeter d. Heat capacity of the calorimeter 3....
Lab 9 Heat of Reaction
OBJECTIVE:
To experimentally determine the heat of reaction for two
exothermic reactions.
DISCUSSION:
The heat given off or gained in a reaction is called the heat
of reaction (∆?????????).
A reaction that releases heat is known as an exothermic
reaction; an endothermic reaction
is one that absorbs heat.
The heat of the reaction corresponds to one mole of the
reactant and is expressed in
kilocalories per mole of reactant or in kilojoules per mole of...
4. How many kJ of heat are released when 85.0 g of NaOH reacts with excess H2SO4? H2SO4(aq) + 2NaOH(aq) → Na2SO4(aq) + 2 H2O(l) + 114 kJ 5. 2.50 g of octane, CHis was bumed in a bomb calorimeter causing the temperature to increase from 21.0°C to 35.5°C. The total heat capacity of the calorimeter was 8.33 kJ/°C. Calculate the heat of combustion for the reaction shown below. 2 CH 18(1) + 2502(9) ► 16 CO2(g) + 18 H2O(g)...
Most questions answered within 3 hours.
-
if a firm producing 100 units at $5.00 each experience
an 80% experience curve, what will...
asked 8 minutes ago -
A solid, uniform disk of radius 0.250 m and mass 53.7 kg rolls
down a ramp...
asked 2 hours ago -
Given the following table of high speed internet access vs.
annual home income:
Home Income
%...
asked 2 hours ago -
A baseball batter hits a 0.145kg baseball straight up into the
air. The baseball leaves the...
asked 3 hours ago -
An FM modulator is tested using
single-tone baseband signal with frequency of 50kHz and a sprectrum...
asked 3 hours ago -
Write the ionic equations for the first stage of salts
hydrolysis.
Anion, Cation?
Na2S
NiSO4
K2SO4...
asked 5 hours ago -
suppose there is a normally distributed population with a mean of
250 and a standard deviation...
asked 6 hours ago -
Question Three
Suppose you as project manager are using the Waterfall
development methodology on a large...
asked 7 hours ago -
Which statement is not true about welfare in Canada?
A.Benefits typically vary based on one's ability...
asked 7 hours ago -
Please help me with FLOWCHART and UML diagram for class,
thank you!
#include <iostream>
#include <fstream>...
asked 8 hours ago -
3. Describe the “logic circuit” of the Lac operon. Which
proteins are bound or not to...
asked 8 hours ago -
Ayesha’s adjusted gross income is $60,000 in 2019. She donated a
piece of artwork with a...
asked 8 hours ago